Portsmouth Rhode Island Weather Almanac
Sunday, April 13, 2025
Continued Cloudy, Rain and Fog, Windy and Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		April 13, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Temperature		44		54		54		-10		79		in	2023		38		in	1929
Minimum Temperature		38		45		39		-1		51		in	2023		26		in	1956
Average Temperature		41		50		47		-6		65		in	2023		35		in	1929
Month Avg Max Temperature		50.2		52.1		52.3		-2.1		62.3		in	2010		43.6		in	2003
Month Avg Min Temperature		36.4		39.2		37.1		-0.7		43.7		in	2010		28.5		in	1982
Month Average Temperature		43.5		45.9		45.0		-1.5		53.2		in	2010		37.9		in	1982
High Heat Index										78		in	2023
Low Wind Chill		28		39		31		-3							18		in	1956
Heating Degree Days		24		15		18		+6		30		in	1929		0		in	2023
Month Heating DD		279		248		260		+19		352		in	1982		153		in	2010
Season Heating DD		4642		4480		4910		-268		5984		in	1918		4087		in	2012
Cooling Degree Days		0		0		0		+0		0		in	1900		0		in	All
Month Cooling DD
Year Cooling DD
Maximum Dew Point		43		47		42		+1		56		in	2019		18		in	1992
Minimum Dew Point		36		38		29		+7		48		in	2020		3		in	1992
Average  Dew Point		40		43		35		+5		52		in	2019		11		in	1992
Month Avg Max Dew Point		43.3		42.8		40.2		+3.2		49.1		in	2010		29.0		in	1965
Month Avg Min Dew Point		29.2		34.1		26.7		+2.5		36.9		in	2010		13.2		in	1982
Month Average Dew Point		36.2		38.5		33.4		+2.8		43.0		in	2010		21.7		in	1982
Precipitation		.33		T		.14		+.19		2.55		in	1913
One Hour Rain		.07		T						.40		in	2004
Half Hour Rain		.04		.00						.26		in	1905
Hourly Rain Rate		.11		.00						4.30		in	1905
Month Precipitation		2.24		3.21		1.89		+.35		5.72		in	1983		.03		in	1963
Year Precipitation		11.50		22.05		13.35		-1.85		24.99		in	1983		6.57		in	2012
Snow		0.0		0.0		0.0		+0.0		0.4		in	1997		0.0		in
Snow Depth		0		0		0.0		+0.0		T		in	1958		0		in
Month Snow		T		0.0		0.5		-0.5		9.6		in	1996		0.0		in	2024
Season Snow		11.9		12.7		33.5		-21.6		84.1		in	1996		5.0		in	1998
		April 13, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		95%		84%		+14%		100%		in	2019		43%		in	1976
Minimum Humidity		94%		58%		50%		+44%		94%		in	2025		13%		in	1963
Average Humidity		96%		77%		67%		+29%		97%		in	2004		33%		in	1992
Maximum Barometer		29.88		29.74		30.11		-00.23		30.67		in	1991		29.43		in	1953
Minimum Barometer		29.77		29.49		29.85		-00.08		30.39		in	2000		29.19		in	1965
Average Barometer		29.83		29.62		29.98		-00.16		30.47		in	2000		29.33		in	1953
Average Wind		11.3		10.5		7.8		+3.5		19.9		in	1987		3.6		in	1984
Direction		N		W		S				NNE					ESE
High Wind Gust		39		32		26		+13		48		in	2020		15		in	1970
Direction		NNE		WNW		NNE				SSE					S
Maximum Water Temp		45.0		46.6		46.2		-1.2		53.3		in	2010		42.0		in	2020
Minimum Water Temp		43.2		45.5		43.6		-0.4		47.7		in	2012		38.8		in	2003
Average Water Temp		44.1		46.1		44.9		-0.8		49.7		in	2010		40.9		in	2003
Sunrise/ AM Twilight		6:59:40 AM						5:38:01 AM
Sunset / PM Twilight		7:23:47 PM						7:52:59 PM
Length Of Day		13:16:33
Special Conditions		Fog
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